Sliding latch



P. SCHMIDT SLIDING LATCH Filed Axigust so. 19

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' This invention relates to looks sncl latches and more particularly to a novel and proved key operated, sliding may be opened and closed from either side of a door or closure.

L One of the objects of my invention is to provide a key operatedlock or latch in cluding aseries of meshed gears and rock bars which are limited in their movement in their open and closed. positions.

A further object of my invention is to provide it look or latch oi the character above specified, wherein s pair of relatively movable rack bars are operable by a key actuated series of meshed gears.

A further object of my invention is toprovide a lock or latcli which is extremely simple in construction, highly eflicient in operation and use, easily assembled, prac tical, durable, capable oi s mul. o ieitv of uses and otherwise cheap to mono In the drawings, forming a specification,

Figure lis s vieiv showin'g the and meshed gears in position. on side of the door or closure.

Figure l is a sectional viev taken on the line 1-1 of Figure 1.

Figures 2 and 3 are views of dif erent lsicli liars I type of keys.

Figures 4 end 5 are end views of gears having different types of gear teeth.

Figure 6 is a view showing the open position of the latch bars on the door.

Referring now to the drawings, wherein like reference characters designate corre sponding parts throughout the several views, 5 designates the inside of at door or closure and 6 the door jarcb. The lock or latch rope-r consists of a horizontal, rack bar which cooperates with e, vertical rack bar 8, constructed and arranged to operate so that the rack bar 7 will be limited in its movement by the bar 8, when the letter has reached its maximum, vertical position, when in engagement with a stop 9., permenently secured to the door. The inner end of the bar 7 and the lower end of the bar 8 is cut away at an angle of substantially 45 do grees so'tliat when the said ends or. the loers are in, engagement, they form a right angle. Both of the bars are slotted as at 10, 112., and are slidable on a, pair of-lugs 12, 13, permanently attached to the inner face or the door or closure; The opposite end of the rack bar 7 is somewhat enlarged {IS-illlatcli which dicated at i l, and adapted to engage an abutment or stop 15 on the door jamo.

The teeth 16, 1'7, of the respective rack bars 7, c, mesh with a pair 013 gears 18, 19, each mounted on o shaft-20, 21. The said gears mesh with pair of pinions 22, 23, ofiset with respect to each otlieiqthe said pinions being also mounted on short shafts. The pinions meshing with the gems and the said gears meshing with the rack bars, as the pinions are rotated in a clockwise direction, the rack bars will separate as clearly shown in Figure 6. order to affect this operation, I provide specially constructed key 25 having a cylindrical toothed portion 26 formed on the shank 27, which key is adapted to mesh with the teeth of tlie pith- 10115 when the sail key is inserted through tive teeth of the pinions and the key mustproperly engage in order to effect the operation. desired.

It will loe seen that as the latch bar 7 moves to the right, and to its open position, the cooperating rack bar 8 moves upwardly at the some time. As the bars separate, the

ends 31 oi the bar '8 moves inwardly being limited however, in such movement when the upper end of the reel: bar 8, abuts the stop 9.

It is oi course understood that in the type of latch shown, the door or closure swings in one direction, that is, outwardly, so that the melt liar 7 must lie Withdrawn from the position shown by Figure l to the position shown by Figure 5: loefore the door may be opened. The door, 0: course, may lee latched either from the inside or the outside, since by the rotation of the key cpcreting the goers end. the respective melt more, will move the letter to the locked and unlocked positions.

9 die I invention with sca e of particularity, I realize that in practice various alterations therein may "be made. I therefore reserve t e and privilege of changing the heveilluetra''eal sod described my ltltl form. of the details of construction or otherwise altering the arrangem nt of the correieted parts Without departing; zirorn the spirit of the invention orthe scope of the appended claims.

Having; thus shown and described my in'-' vention, What I claim as new and desire to secure by United States etters Patent is 1. A look of the class described comprising a rack bar, a second rack bar movable at right singles relatively to, the first mentioned rack our, one end of each of the said bars engaging each other in one position, guides for said bars, gears engaging each of the rack bars, pinions meshing with the gears and e gear toothed key adapted to mesh with the aforesaid pinions for the purpose of actuating the said pinions and gears for moving the respective rack bars to their open and closed positions.

2. A look of the class described, comprising; a bolt heving teeth thereon ir meshed engagement with a gear member and a pinion in mesh with the said gear member, a stop her else provided with teeth in mesh with an adjacent gear member which is in turn meshed with e pinion, the two said pinions set at e distance from each other and in position to engage a geer toothed key when inserted between them and to be messes rotated thereby to actuate the e'foreseid boit and stop her in specific relation to each other, substantially as shown and described.

3. A lock of the class described, cdmpris ing a bolt toothed on one of its sides and engaging a gear member which is in turn in mesh with an adjacent pinion, a stop her toothed on one of its sides and engaging e gear having a pinion in mesh therewith, the teeth of the said gears and pinions cut and spaced in distinctive formation and adapted to engage and to be operated by a gear out key coinciding with the aforesaid distinctive teeth, substantially as shown and described.

4. A look of the class described, comprising; a slideble bolt, a slidahle stop her adjacent to the said bolt at its rear extremity, toothed edges on the seid bolt and stop bar and gear Wheels in mesh therewith and pinions in mesh with the said gear wheels and the said pinions so placed as to be apart from each other, but capable of operation together by meansoi' en inserted key, gear cut to mesh therewith, substantially as shown and described.

Signed at Garwood, in the county of Union and State of New Jersey, this 14th day of July A; D. 19%.

PAUL SCHMIDT. 

